Power balancing the multibeam OMEGA laser
Abstract
Multibeam lasers often require an output beam balance that specifies the degree of simultaneity of laser output energy, instantaneous power, or instantaneous irradiance (power per unit area). In this work the general problem of balancing a multibeam laser is described. Specific techniques used to balance the output power of the 60-beam pulsed OMEGA Laser System are discussed along with a measured reduction of beam-to-beam imbalance. In particular, the square-pulse distortion induced by a simple saturating amplifier operating with its output at some fraction of its saturation fluence is derived, and a novel method of exchanging gain between saturated amplifiers in a single beam that have different saturation fluences to adjust balance is described.
- Authors:
-
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Publication Date:
- Research Org.:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1485416
- Alternate Identifier(s):
- OSTI ID: 1480557
- Report Number(s):
- 2018-169, 1452
Journal ID: ISSN 1559-128X; APOPAI
- Grant/Contract Number:
- NA0001944
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Optics
- Additional Journal Information:
- Journal Volume: 57; Journal Issue: 32; Journal ID: ISSN 1559-128X
- Publisher:
- Optical Society of America
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Citation Formats
Sampat, S., Kosc, T. Z., Bauer, K. A., Dean, R. D., Donaldson, W. R., Kwiatkowski, J., Moshier, R., Rigatti, A. L., Romanofsky, M. H., Waxer, L. J., and Kelly, J. H. Power balancing the multibeam OMEGA laser. United States: N. p., 2018.
Web. doi:10.1364/AO.57.009571.
Sampat, S., Kosc, T. Z., Bauer, K. A., Dean, R. D., Donaldson, W. R., Kwiatkowski, J., Moshier, R., Rigatti, A. L., Romanofsky, M. H., Waxer, L. J., & Kelly, J. H. Power balancing the multibeam OMEGA laser. United States. https://doi.org/10.1364/AO.57.009571
Sampat, S., Kosc, T. Z., Bauer, K. A., Dean, R. D., Donaldson, W. R., Kwiatkowski, J., Moshier, R., Rigatti, A. L., Romanofsky, M. H., Waxer, L. J., and Kelly, J. H. Mon .
"Power balancing the multibeam OMEGA laser". United States. https://doi.org/10.1364/AO.57.009571. https://www.osti.gov/servlets/purl/1485416.
@article{osti_1485416,
title = {Power balancing the multibeam OMEGA laser},
author = {Sampat, S. and Kosc, T. Z. and Bauer, K. A. and Dean, R. D. and Donaldson, W. R. and Kwiatkowski, J. and Moshier, R. and Rigatti, A. L. and Romanofsky, M. H. and Waxer, L. J. and Kelly, J. H.},
abstractNote = {Multibeam lasers often require an output beam balance that specifies the degree of simultaneity of laser output energy, instantaneous power, or instantaneous irradiance (power per unit area). In this work the general problem of balancing a multibeam laser is described. Specific techniques used to balance the output power of the 60-beam pulsed OMEGA Laser System are discussed along with a measured reduction of beam-to-beam imbalance. In particular, the square-pulse distortion induced by a simple saturating amplifier operating with its output at some fraction of its saturation fluence is derived, and a novel method of exchanging gain between saturated amplifiers in a single beam that have different saturation fluences to adjust balance is described.},
doi = {10.1364/AO.57.009571},
journal = {Applied Optics},
number = 32,
volume = 57,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2018},
month = {Mon Jan 01 00:00:00 EST 2018}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA
journal, February 2020
- Theobald, W.; Sorce, C.; Donaldson, W. R.
- Review of Scientific Instruments, Vol. 91, Issue 2
Figures / Tables found in this record: